UOP 953-97

UOP 953-97 is a chromatography-based laboratory method for measuring sulfate and thiosulfate in caustic aqueous solutions. Built around ion chromatography, it supports clear analytical separation and comparison of these inorganic species in alkaline process samples. For buyers evaluating a UOP method, this standard is relevant when sulfate and thiosulfate levels need to be checked for process control, solution quality, or technical review. UOP 953-97 is typically suited to refinery and industrial laboratory workflows where consistent, defensible ion analysis matters for reporting and decision-making.

Purpose of UOP 953-97

The purpose of UOP 953-97 is to provide a practical analytical approach for determining sulfate and thiosulfate in caustic aqueous solutions using ion chromatography. As a UOP chromatography method, it focuses on instrumental separation and measurement of specific ions in a solution matrix that may be important in refining, petrochemical, or related process environments. This makes the standard useful for laboratory analysts and technical reviewers who need a structured method for comparing samples and documenting ionic composition with greater consistency.

Laboratory use of UOP 953-97

UOP 953-97 is commonly aligned with laboratory analysis where caustic aqueous streams or solution samples need ionic assessment. It may be used by refinery labs, analytical chemists, and QA/QC teams responsible for sample review, method comparison, and quality verification. Because the method is based on ion chromatography, it fits workflows that require instrumental analysis and clear separation of sulfate and thiosulfate from other solution components. It is also relevant for technical personnel evaluating sample condition or tracking solution changes over time.

Practical value of UOP 953-97

In day-to-day use, UOP 953-97 helps support consistent reporting of sulfate and thiosulfate results for caustic aqueous samples. That can improve laboratory comparability, reduce ambiguity in sample review, and strengthen technical documentation for internal quality checks. For organizations working with process solutions, the method can support better decision-making around sample condition, product consistency, and quality control follow-up. Its chromatography-based format also makes it a practical choice for teams that depend on repeatable instrumental data in refinery and industrial laboratory settings.

• Sulfate and thiosulfate determination
• Ion chromatography workflow
• Caustic aqueous solution analysis
• Refinery laboratory and QA/QC use
• Sample review and quality documentation